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Finding the Third Proportional to 239,891 and 512,998

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Solution

The third proportional to 239,891 and 512,998 is: 1,097,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,891 : 512,998 = 512,998 : x
  2. Step 2: Convert to fraction form
    239,891/512,998 = 512,998/x
  3. Step 3: Cross multiply
    239,891x = 512,998 × 512,998
  4. Step 4: Simplify right side
    239,891x = 263,166,948,004
  5. Step 5: Solve for x
    x = 263,166,948,004/239,891
  6. Step 6: Final answer
    x = 1,097,027.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.